BMW 8509749 Diesel Exhaust Resonator Muffler

( Part Type: Exhaust Muffler ), ( Manufacturer Part Number: 8509749 )

Review BMW Diesel Exhaust Resonator Muffler Mid Section Oem fits E90 335D 2009–2011

The BMW 8509749 09-11 E90 335d Diesel Exhaust Resonator Muffler is a premium replacement part designed to ensure optimal exhaust system performance in BMW 3 Series E90 models equipped with the 3.0L Diesel engine (335d) produced between 2009 and 2011.

This exhaust resonator muffler is engineered to meet BMW's stringent quality standards, using advanced materials and manufacturing techniques. Its primary function is to reduce exhaust noise while maintaining the engine's power output. The resonator muffler features a unique internal design with specific dimensions to effectively cancel out specific exhaust frequencies without hindering the flow of gases.

Crafted from high-quality stainless steel, this exhaust component is resistant to rust and corrosion, ensuring durability and longevity. The muffler is also coated with a protective finish to prevent oxidation and discoloration, contributing to the part's aesthetic appeal and maintaining the vehicle's original look.

The BMW 8509749 09-11 E90 335d Diesel Exhaust Resonator Muffler is a direct-fit replacement, meaning it is designed to slide right into place without requiring any modifications. Its compact size and sleek design make it an excellent upgrade for those seeking a quieter yet powerful driving experience.

Another advantage of this exhaust component is its compatibility with BMW's on-board diagnostics system. It does not interfere with the vehicle's emissions control system, ensuring a hassle-free installation process and adherence to local regulations.

In summary, the BMW 8509749 09-11 E90 335d Diesel Exhaust Resonator Muffler is a high-performance, durable, and quiet exhaust component designed specifically for BMW 3 Series E90 models with 3.0L Diesel engines. It promises a seamless installation, improved exhaust flow, and a quieter yet powerful driving experience, making it an essential upgrade for BMW enthusiasts seeking to enhance their vehicle's performance and comfort.

The BMW E90 335d is known for its powerful and fuel-efficient diesel engine. One of the components that contribute to its exhaust system is the exhaust resonator muffler. Replacing this part may be necessary due to various reasons such as performance enhancements or repair needs. In this analysis, we will discuss the potential pros and cons of buying a new BMW 8509749 exhaust resonator muffler for a BMW E90 335d.

1. Improved Sound: A new exhaust resonator muffler can result in a better exhaust note. This can lead to a more enjoyable driving experience for some enthusiasts.

2. Better Performance: A new exhaust component can potentially lead to improved performance. The new part may reduce back pressure and increase exhaust gas flow, resulting in better engine response and power output.

3. Reduced Emissions: A worn-out muffler can potentially lead to increased emissions, which is not only harmful to the environment but can also lead to failed emissions tests. A new exhaust resonator muffler ensures that emissions are at acceptable levels.

4. Improved Fuel Efficiency: A more efficient exhaust system can lead to improved fuel efficiency. This is because the exhaust gases are expelled more efficiently, reducing the workload on the engine.

5. Longer Lifespan: A new exhaust resonator muffler comes with a longer lifespan compared to a used or worn-out part. This translates to fewer repairs and maintenance costs in the long run.

1. Cost: Replacing an exhaust resonator muffler can be quite expensive. The BMW OEM part number 8509749 can cost anywhere from $700 to $1,200, depending on the supplier and location.

2. Complex Installation: Installing an exhaust resonator muffler can be a complex process. It involves removing various components such as the catalytic converter, downpipe, and exhaust manifold. This requires a good understanding of the exhaust system and the appropriate tools.

3. Potential for Damage: During the installation process, there is a risk of damaging other components or causing leaks in the exhaust system. This can lead to additional repair costs.

4. Performance Trade-off: While some enthusiasts may prefer the improved sound and performance that comes with a new exhaust resonator muffler, others may prefer the quieter and more refined exhaust note that comes with the stock muffler.

In conclusion, the decision to buy a new BMW 8509749 exhaust resonator muffler for a BMW E90 335d depends on the individual's priorities and preferences. Those who value improved sound, performance, reduced emissions, and improved fuel efficiency may find the investment worthwhile. However, those who are concerned about the cost, complexity of installation, potential for damage, and performance trade-offs may choose to opt for a used or aftermarket part instead. Ultimately, it is essential to weigh the pros and cons carefully and consider all factors before making a decision.

If you are considering buying a new BMW 8509749 exhaust resonator muffler for your BMW E90 335d, I would recommend doing thorough research on the part and its installation process. Seek advice from experienced mechanics or BMW forums to ensure that you have a clear understanding of the benefits and challenges. Additionally, consider exploring alternative options such as aftermarket parts or used components to find a more cost-effective solution that still meets your performance and sound preferences.

part # 8509749 price

• $195.00

specifications mufflermooch:

• for models: E90, 335d
• for makes: Bmw
• for years: 2009-2011
• part type: Exhaust Muffler
• manufacturer part number: 8509749

payments mufflermooch:

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• wallet: Paypal
• credit card: Mastercard

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• # reviews: 1343
• rating: 98.0%

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• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• type: Fixed
• transit: 3-7 Days
• cost: $120.00
• class: Standard

offer mufflermooch:

• quantity: 1
• started: October 2, 2025
• best offers: True
• availability: In Stock
• sold: 0
• options: Ship-to-home

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general mufflermooch:

• condition: Used
• Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators

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